From a288cf58a0dc0f965a6f964c76bb86bb1989d797 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 16 Mar 2016 10:45:54 +1000 Subject: glamor: swizzle RED to 0 for alpha textures I'm pretty sure Eric suspected this could cause a problem, and we couldn't find a test. Well loading feedly in firefox seems to trigger badness that this solves. bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94554 Reviewed-by: Adam Jackson Signed-off-by: Dave Airlie Tested-by: Timo Aaltonen --- glamor/glamor_fbo.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'glamor') diff --git a/glamor/glamor_fbo.c b/glamor/glamor_fbo.c index a531f6052..f4f874981 100644 --- a/glamor/glamor_fbo.c +++ b/glamor/glamor_fbo.c @@ -352,8 +352,10 @@ _glamor_create_tex(glamor_screen_private *glamor_priv, glBindTexture(GL_TEXTURE_2D, tex); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - if (format == glamor_priv->one_channel_format && format == GL_RED) + if (format == glamor_priv->one_channel_format && format == GL_RED) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_ZERO); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, GL_RED); + } glamor_priv->suppress_gl_out_of_memory_logging = true; glTexImage2D(GL_TEXTURE_2D, 0, format, w, h, 0, format, GL_UNSIGNED_BYTE, NULL); -- cgit v1.2.3